<template>
  <div class="list" ref="wrapper">
    <div>
      <div class="area">
        <div class="title border-topbottom">当前城市</div>
        <div class="title-content">
            <div class="title-wrapper">
              <div class="button">{{this.currentCity}}</div>
            </div>
        </div>
      </div>
      <div class="area">
        <div class="title border-topbottom">热门城市</div>
        <div class="title-content">
            <div
              class="title-wrapper"
              v-for="item in hot"
              :key="item.id"
              @click="handleCityClick(item.name)"
              >
              <div class="button">{{item.name}}</div>
            </div>
        </div>
      </div>
      <div
        class="area"
        v-for="(item, key) in cities"
        :key="key"
        :ref="key"
        >
        <div class="title border-topbottom">{{key}}</div>
        <div
          class="title-list border-bottom"
          v-for="innerItem of item"
          :key="innerItem.id"
          @click="handleCityClick(innerItem.name)"
        >
        {{innerItem.name}}
        </div>
      </div>
    </div>
  </div>
</template>
<script>
import BScroll from 'better-scroll'
import { mapState, mapMutations } from 'vuex'
export default {
  name: 'CityList',
  // props: ['hot', 'cities'],
  props: {
    hot: Array,
    cities: Object,
    letter: String
  },
  computed: {
    ...mapState({
      currentCity: 'city'
    })
  },
  methods: {
    handleCityClick (city) {
      // this.$store.commit('changeCity', city)
      this.changeCity(city)
      this.$router.push('/')
    },
    ...mapMutations(['changeCity'])
  },
  watch: {
    letter () {
      if (this.letter) {
        const element = this.$refs[this.letter][0]
        this.scroll.scrollToElement(element)
      }
    }
  },
  mounted: function () {
    this.scroll = new BScroll(this.$refs.wrapper)
    console.log('11', this.cities)
  }
}
</script>
<style scoped>
.border-topbottom::before{
  border-bottom:.1px solid #ccc;
}
.border-topbottom::after{
  border-bottom:.1px solid #ccc;
}
.border-bottom::after{
   border-bottom:.1px solid #ccc;
}
.list{
  position: absolute;
  top:1.58rem;
  left:0;
  right:0;
  bottom:0;
  overflow: hidden;
}
  .title{
    line-height: .52rem;
    background:#eee;
    padding-left: .1rem;
  }
  .title-content{
    padding:.1rem .6rem .1rem .1rem;
    overflow: hidden;
  }
  .title-wrapper{
    width:33.33%;
    float: left;
  }
  .button{
    margin:.1rem;
    padding:.1rem 0;
    text-align: center;
    border:.02rem solid #eee;
    border-radius: .04rem;
  }
  .title-list{
    height: .60rem;
    line-height: .60rem;
    width: 100%;
    padding-left: .1rem;
  }
</style>
